When people want a package shipped from one place to another, they will usually hire a package shipping service, a package shipping company or a package shipper to do the job for them. Some package shipping services specialize in business to business shipping and mostly ship packages from one business to another. There are other package shipping companies that excel at shipping packages from person to person or from a business to a consumer. Some package shipping outfits specialize in moving large packages while others may mostly handle smaller packages and excel in getting those packages from place to place as quickly as possible. Some package shipping services companies are courier services that employ couriers who personally transport packages from place to place. Some package shippers offer global shipping services while others may mostly ship packages within the United States.